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You searched for: subject:"Radio Wave Propagation"
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[texts]A survey and bibliography of recent research in the propagation of VLF radio waves (Volume NBS Technical Note 58) - Wait, James R.

Keywords: Radio wave propagation--Bibliography; Radio wave propagation
Downloads: 95
[texts]Amplitude and phase of the low- and very low-radiofrequency ground wave (Volume NBS Technical Note 60) - Johler, J. Ralph; Walters, L.C.; Lilley, C.M.

Keywords: VLF radio wave propagation; Radio wave propagation
Downloads: 128
[texts]Data reduction instrumentation for radio propagation research (Volume NBS Technical Note 111) - Johnson, Walter E.

Keywords: Radio wave propagation--Research
Downloads: 113
[texts]VHF ionospheric scatter system loss measurements European-Mediterranean area (Volume NBS Technical Note 230) - Goerke, V. H.; Remmler, O.D.
The results of VHF ionospheric scatter measurements made in the European-Mediterranean area are shown to be in good agreement with results obtained in continental United States.Sporadic-E propagation was observed much more frequently in the EuropeanMedite
Keywords: Ionospheric radio wave propagation
Downloads: 85
[texts]Carrier frequency dependence of the basic transmission loss in tropospheric forward scatter propagation (Volume NBS Technical Note 53) - Norton, Kenneth A.

Keywords: Tropospheric radio wave propagation
Downloads: 130
[texts]Radio wave propagation in an inhomogeneous atmosphere (Volume NBS Technical Note 24) - Wait, James R.

Keywords: Radio wave propagation; Atmosphere
Downloads: 180
[texts]Survey of Central Radio Propagation Laboratory Research in tropospheric propagation, 1948-1956 (Volume NBS Technical Note 26) - Herbstreit, J. W. (Jack William), 1917-; Rice, P.L.

Keywords: Tropospheric radio wave propagation
Downloads: 179
[texts]Acoustic-gravity waves in the atmosphere : symposium proceedings / edited by T. M. Georges - ESSA/ARPA Symposium on Acoustic-Gravity Waves (1968 : Boulder, Colo.)
"Sponsored by the Environmental Science Services Administration and the Advanced Research Projects Agency."
Keywords: Ionospheric radio wave propagation
Downloads: 576
[texts]Mode conversion in the earth-ionosphere waveguide / James R. Wait - Wait, James R
"June 8, 1962."
Keywords: VLF radio wave propagation
Downloads: 209
[texts]A Note on the propagation of certain LF pulses utilized in a radio navigation system (Volume NBS Technical Note 118) - Johler, J. Ralph.

Keywords: Radio wave propagation; Loran
Downloads: 143
[texts]Prolonged space-wave fadeouts in tropospheric propagation (Volume NBS Technical Note 88) - Barsis, Albrecht P.; Johnson, Mary Ellen

Keywords: Tropospheric radio wave propagation
Downloads: 72
[texts]Proceedings of the 1960 Conference on the Propagation of E.L.F. Radio Waves (Volume NBS Technical Note 61)

Keywords: Radio wave propagation
Downloads: 104
[texts]Transmission loss predictions for tropospheric communication circuits. Volume 1 (Volume NBS Technical Note 101 Vol. 1) - Rice, P. L. (Patricia L.); Longley, A.G.; Norton, K.A.; Barsis, A.P.

Keywords: Tropospheric radio wave propagation
Downloads: 337
[texts]A Summary of VHF and UHF tropospheric transmission loss data and their long-term variability (Volume NBS Technical Note 43) - Williamson, Dorothy A.; Fuller, V.L.; Longley, A.G.; Rice, P.L.

Keywords: Tropospheric radio wave propagation
Downloads: 114
[texts]Support Material Radio Wave Propagation - Insituto Superior Técnico
Support Material for the Radio Wave Propagation 2008/2009 course from the integrated master degree in Electrical and Computer Engineering froum IST. General Objectives This course intends to complement basic information on telecommunications previously received by the students. It introduces the physical mechanisms along with theoretical models for a proper characterisation of the propagation channel...
Keywords: Radio Wave Propagation
Downloads: 1,483
[texts]Computer program for ionospheric mapping by numerical methods (Volume NBS Technical Note 181) - Hinds, Martha E.; Jones., William B.

Keywords: Ionospheric radio wave propagation; Computers
Downloads: 105
[texts]Attenuation of the ground wave of a low frequency electromagnetic pulse (Volume NBS Technical Note 310) - Morgenstern, J. C.; Johler, J.R.

Keywords: Electromagnetic pulse; Radio wave propagation
Downloads: 79
[texts]Low- and very low-radiofrequency tables of ground wave parameters for the spherical earth theory : the roots of Riccati's differential equation / J.R. Johler, L.C. Walters, C.M. Lilley ; sponsored by Air Force Cambridge Research Center, Air Research and D (Volume NBS Technical Note 7) - Johler, J. Ralph.

Keywords: Radio wave propagation; Riccati equation
Downloads: 84
[texts]Numerical simulation of ionospheric wave interaction experiments. (Volume NBS Technical Note 325) - Georges, T. M. (Thomas Martin), 1938-

Keywords: Ionosphere; Ionospheric radio wave propagation
Downloads: 147
[texts]Electron ballistics and electromagnetic waves in the ionosphere - Chaney, Jesse Gerald.
Cover title
Keywords: Ionospheric radio wave propagation; Electrons
Downloads: 67
[texts]VHF radio propagation data for the Cedar Rapids - Sterling, Anchorage - Barrow, and Fargo - Churchill test paths : April 1951 through June 1958 (Volume NBS Technical Note 79) - Sugar, George R.; Sullivan; Kenneth W.

Keywords: Shortwave radio; Radio wave propagation
Downloads: 110
[texts]Bibliography on tropospheric propagation of radio waves (Volume NBS Technical Note 304) - Nupen, Wilhelm

Keywords: Tropospheric radio wave propagation--Bibliography
Downloads: 379
[texts]Radio Wave Propagation In The Presence Of A Tropospheric Duct - Dresp, M. R.
"A full-wave solution has been obtained for radio wave propagation in the presence of an elevated tropospheric layer. This analysis was performed as part of the CNI (Communication, Navigation, Identification) experimental program. The tropospheric layer is modeled as a trilinear refractive index profile with a sufficient lapse rate so as to result in an elevated duct. The analytical solutions give the received signal level for air-to-air propagation paths at UHF, the corresponding signal fading ...
Keywords: Radio Propagation; Ionospheric radio wave propagation; Tropospheric Ducting; Radio Wave Propagation; Tropospheric radio wave propagation
Downloads: 25
[texts]Conference on Non-linear Processes in the Ionosphere, December 16-17, 1963. Volume 1 (Volume NBS Technical Note 211 Vol. 1) - Menzel, Donald H.; Smith, Ernest K., Jr. (editors)
Contents:Microscopic theory of ionospheric cross-modulation; Ionospheric wave interaction using gyro-waves.Part 1.The night-time lower E-region; Wav * e interaction at oblique incidence, near the gyro frequency; Non-linear propagation of electromagnetic w
Keywords: Ionosphere--Congresses; Ionospheric radio wave propagation--Congresses
Downloads: 140
[texts]Calculated diffraction effects at VLF from a localized ionospheric depression (Volume NBS Technical Note 208) - Wait, James R.

Keywords: Ionospheric radio wave propagation; Radio waves--Scattering
Downloads: 135
[texts]Mode calculations for VLF propagation in the earth-ionosphere waveguide (Volume NBS Technical Note 114) - Spies, Kenneth P.; Wait, James R.

Keywords: VLF emissions; Ionospheric radio wave propagation
Downloads: 148
[texts]Atlas of Fourier coefficients of diurnal variation of foF2 (Volume NBS Technical Note 142) - Jones, William B., 1931-

Keywords: Ionosphere; Ionospheric radio wave propagation; Harmonic analysis
Downloads: 77
[texts]On plasma collision frequencies proportional to energy in the radio wave reflection and transmission process (Volume NBS Technical Note 164) - Johler, J. Ralph.; Harper, John D., Jr.

Keywords: Ionospheric radio wave propagation; Plasma (Ionized gases)
Downloads: 253
[texts]Frequency dependence of VHF ionospheric scattering. (Volume NBS Technical Note 9) - Blair, James C.

Keywords: Ionospheric radio wave propagation; Radio waves--Scattering
Downloads: 75
[texts]Characteristics of the earth-ionosphere waveguide for VLF radio waves (Volume NBS Technical Note 300) - Wait, James R.; Spies, K. P.
The principal results of this technical note are graphical presentations of the attenuation rates, phase velocities, and excitation factors for the dominant modes in the earth-ionosphere waveguide.The frequency range considered is 8 kc/s to 30 kc/s. *The
Keywords: VLF emissions; Ionospheric radio wave propagation
Downloads: 295
[texts]A 100 KW 2-25 Mc/s distributed amplifier, designed for use with 10 KW ionospheric sounders (Volume NBS Technical Note 331) - Harding, W. B.; Woodward, M. W.; Carroll, J. C.

Keywords: Ionospheric radio wave propagation; Radio meteorology
Downloads: 97
[texts]Numerical calculations for reflection of electromagnetic waves from a lossy magnetoplasma (Volume NBS Technical Note 205) - Walters, Lillie C.; Wait, James R.
Extensive numerical results are presented for the reflection coefficient of a horizontally stratified ionized medium. The profiles of electron density and the collision frequencies are both taken to be exponential functions. The d-c magnetic field is ta
Keywords: Electromagnetic waves; Ionospheric radio wave propagation
Downloads: 63
[texts]A new autoregressive time series model in exponential variables (NEAR(1)) - Lawrance, A.J.Lewis, P.A.W.
Title from cover
Keywords: ANTENNAS (ELECTRONICS)--RELIABILITY.RADIO WAVE PROPAGATION
Downloads: 61
[texts]Siting criteria for HF communication centers / William F. Utlaut. (Volume NBS Technical Note 139) - Utlaut, William F.

Keywords: Telecommunication; Artificial satellites in telecommunication; Ionospheric radio wave propagation; Radio wave propagation
Downloads: 90
[texts]Ionospheric Radio Propagation - Davies, Kenneth
NBS monograph 80. Contents Chapter 1 The Earth's Atmosphere, Geomagnetism, and the Sun 1.1. Nomenclature 1 1.2. Pressure and Density Variations 2 1.3. Chemical Composition 5 1.4. Formation of Ionized Layers 8 1.4.1. Ion Production 8 1.4.2. Ion Disappearance 8 1.4.3. Formation of a Chapman Layer 12 1.4.4. Electron Density Distribution 17 1.5. The Earth's Magnetic Fields 19 1.5.1. The Dipole Field 19 1.5.2...
Keywords: Ionospheric Radio Wave Propagation; NBS monograph; Ham Radio; Amateur Radio; DXing; Radio Propagation; Radio Wave Propagation
Downloads: 790
[texts]Phase and amplitude diversity in over-water transmissions at two microwave frequencies (Volume NBS Technical Note 307) - Janes, H. B.; Kirkpatrick, A. W.; Waters, D. M.; Smith, D.
Propagation measurements at 9.4 and 9.2 Gc/s were made over a 47 km, line-of-sight, over-water path at Eleuthera Island in the Bahamas.The purpose was to study the signal amplitude and phase variations at the two frequencies, and in particular, the variat
Keywords: Shortwave radio--Transmitters and transmission; Tropospheric radio wave propagation
Downloads: 66
[texts]Characteristics of point-to-point tropospheric propagation and siting considerations (Volume NBS Technical Note 95) - Kirby, R. S.; Rice, P. L.; Maloney, L. J.

Keywords: Tropospheric radio wave propagation; Radio meteorology; Radio waves
Downloads: 88
[texts]HAARP High Power Experiments And Observations Of Ionospheric Interactions - Rodriguez, Paul
HAARP High Power Experiments And Observations Of Ionospheric Interactions by Rodriguez, Paul; Kennedy, Edward; Kossey, Paul; Kaiser, Michael; Bougeret, Jean-Louis; Kurth, William; Bristow, William."We review experiments in ionospheric modification and long distance propagation performed at the HAARP facility. Most experiments were in bistatic configuration with the WAVES receiver on the NASA/WIND satellite...
Keywords: HAARP; Ionospheric modification; Radio propagation; Ionospheric scintillation; Radio Wave Propagation
Downloads: 90
[texts]Service area of an airborne television station (Volume NBS Technical Note 35) - Decker, Martin T.

Keywords: Television--Transmitters and transmission; Ionospheric radio wave propagation
Downloads: 48
[texts]Bibliography on direction finding and related ionospheric propagation topics, 1955-1961. (Volume NBS Technical Note 127) - Remmler, Olaf D.

Keywords: Radio direction finders--Bibliography; Ionospheric radio wave propagation--Bibliography
Downloads: 101
[texts]Bibliography of fading on microwave line of sight tropospheric propagation paths and associated subjects. (Volume NBS Technical Note 302) - Dougherty, H. T. (Harold T.)
A collection of titles and abstracts is presented for articles dealing with the microwave fading that has been observed on tropospheric line of sight paths.Selections are included for related subjects such as:measurement of meteorological factors; spatial
Keywords: Tropospheric radio wave propagation--Bibliography; Radio waves--Bibliography
Downloads: 218
[texts]Advances in ionospheric mapping by numerical methods. (Volume NBS Technical Note 337) - Jones, William B. (William Branham), 1931-; Graham, Ronald P.; Leftin, Margo

Keywords: Ionospheric radio wave propagation--Charts, diagrams, etc; Ionosphere--Research
Downloads: 65
[texts]Ionospheric Plasma Disturbances And Effects On Radio Waves - Lee, Min-Chang
Ionospheric Plasma Disturbances And Effects On Radio Waves by Lee, Min-Chang. "Ionospheric plasma heating experiments were conducted at Arecibo to investigate generation of ionospheric plasma bubbles, sheet-like ionospheric irregularities, Langmuir waves, upper hybrid waves, and ion Bernstein waves. This research has shed light on physics and effects of HF waves on naturally occurring ionospheric plasma turbulence." Digitized by The Defense Technical Information Center (DTIC).
Keywords: HAARP; Ionospheric scintillation; Radio Propagation; Ionospheric modification; Radio Wave Propagation
Downloads: 65
[texts]Mode conversion in the earth-ionosphere waveguide (Volume NBS Technical Note 151) - Wait, James R.
An approximate theory for conversion of modes in an earth-ionosphere waveguide is propounded.The model is two concentric spherical reflecting boundaries which have prescribed surface impedances.The localized irregularity at either the ground or the ionosp
Keywords: VLF radio wave propagation; Wave guides; Lower ionosphere
Downloads: 94
[texts]System loss in radio wave propagation (Volume 63D) - Norton, Kenneth A.
Journal of Research of the National Bureau of Standards
Keywords: system loss; radio wave propagation; loss; transmission loss; free space; antenna; propagation loss; dipole
Downloads: 140
[texts]Summary report for 1981 - Washburn, Alan R.Shubert, Bruno Otto, 1934-
"NPS-55-81-023PR."
Keywords: RADIO--RECEIVERS AND RECEPTION.DATA TRANSMISSION SYSTEMS.RADIO WAVE PROPAGATION--DATA PROCESSING.SIGNAL THEORY (TELECOMMUNICATION)
Downloads: 18
[texts]HF Radio Noise In The Topside Ionosphere - Institute for Telecommunication Sciences
HF Radio Noise In The Topside Ionosphere. NTIA report, 80-33. TABLE 0F CONTENTS LIST OF FIGURES iv LIST OF TABLES viii ABSTRACT 1 1. INTRODUCTION 1 2. HF RADIO SOURCES ON THE EARTH 2 3. DMSP HF RADIO NOISE CHARACTERISTICS 5 4. DATA ANALYSIS METHODS 7 5. RESULTS OF THE DATA ANALYSIS 8 5.1. Time Interval Averaging 8 5.2. Global Maps of HF Radio Noise 9 5.3. Frequency Dependence of HF Radio Noise 12 5.4...
Keywords: NTIA report; Ham Radio; Amateur Radio; Radio noise; Ionospheric radio wave propagation; QRN
Downloads: 102
[texts]Effect of operator mental loading on voice recognition system performance - Armstrong, John W.Poock, G. K. (Gary K.)
"NPS-55-81-016."
Keywords: RADIO--RECEIVERS AND RECEPTION.DATA TRANSMISSION SYSTEMS.RADIO WAVE PROPAGATION--DATA PROCESSING.SIGNAL THEORY (TELECOMMUNICATION)
Downloads: 44
[texts]Field Antenna Handbook - Electromagnetic Compatibility Analysis Center. Annapolis, Maryland
"This handbook presents basic propagation theory, the fundamentals concerning antennas, and the design and use of tactical high frequency and very high frequency antennas. It is a field reference for basic antenna facts and a usage guide for antennas. Keywords include: Antennas; High frequency; Propagation; and Very high frequency."Digitized by www.dtic.mil
Keywords: Antennas; Radio Propagation; Amateur Radio; Radio Propagation; HF; Radio Wave Propagation; Ham Radio; VHF
Downloads: 523
[texts]Propagation and detection of radio signals before, during, and after the implosion of a large sports stadium (Veterans' Stadium in Philadelphia) (Volume NIST Technical Note 1541) - Holloway, Christopher L.; Koepke, Galen H.; Camell, D. G. (Dennis G.); Remley, Kate A.; Williams, Dylan Forrest; Schima, Susan A.; Canales, Seturnino.

Keywords: Radio wave propagation--Pennsylvania--Philadelphia--Measurement; Construction and demolition debris--Pennsylvania--Philadelphia--Measurement; Building failures--Investigation--Pennsylvania--Philadelphia
Downloads: 23
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